1 Samuel 23:18

So the two of them made a covenant before the Lord; and David stayed at Horesh while Jonathan went to his house.

1 Samuel 18:3

Then Jonathan made a covenant with David because he loved him as himself.

1 Samuel 20:42

Jonathan said to David, “Go in safety, inasmuch as we have sworn to each other in the name of the Lord, saying, ‘The Lord will be between me and you, and between my descendants and your descendants forever.’” Then he rose and departed, while Jonathan went into the city.

2 Samuel 21:7

But the king spared Mephibosheth, the son of Jonathan the son of Saul, because of the oath of the Lord which was between them, between David and Saul’s son Jonathan.

2 Samuel 9:1

Then David said, “Is there yet anyone left of the house of Saul, that I may show him kindness for Jonathan’s sake?”

1 Samuel 20:12-17

Then Jonathan said to David, “The Lord, the God of Israel, be witness! When I have sounded out my father about this time tomorrow, or the third day, behold, if there is good feeling toward David, shall I not then send to you and make it known to you?

Treasury of Scripture Knowledge

Summary

And they two made a covenant before the LORD: and David abode in the wood, and Jonathan went to his house.

Bible References

General references

1 Samuel 18:3
Then Jonathan made a covenant with David because he loved him as himself.
1 Samuel 20:12
Then Jonathan said to David, “The Lord, the God of Israel, be witness! When I have sounded out my father about this time tomorrow, or the third day, behold, if there is good feeling toward David, shall I not then send to you and make it known to you?
2 Samuel 9:1
Then David said, “Is there yet anyone left of the house of Saul, that I may show him kindness for Jonathan’s sake?”
2 Samuel 21:7
But the king spared Mephibosheth, the son of Jonathan the son of Saul, because of the oath of the Lord which was between them, between David and Saul’s son Jonathan.